IE 11 is not supported. For an optimal experience visit our site on another browser.

Donald Trump reveals pick of James ‘Mad Dog’ Mattis for secretary of defense

03:26

President-elect Donald Trump surprised his staff during a rally in Ohio by revealing his choice of Marine Gen. James “Mad Dog” Mattis as his secretary of defense. The unexpected announcement came during the first stop of Trump’s “thank you” tour. NBC’s Peter Alexander reports for TODAY.